Polaris RZR 900 6" Portal Gear Lift

GDP Portals Are the Best Your RZR 900 Can Get
GDP didn’t invent the portal gear lift, but we did perfect it. And SuperATV’s GDP 6” Portal Gear Lift for the Polaris RZR 900 is the perfect solution for riders who want taller machines, bigger tires, and unmatched power. Choose a 30%, 45%, or 60% gear reduction for more power to the ground. Boost your strength, power, and performance to the max by choosing dual idler gears. GDP isn’t like the other guys. Our parts are refined through endless blood, sweat, and hard rides. GDP portals will redefine your RZR 900.

What is a Dual Idler®?
Perfection takes time. After years of research and development, we’ve made our dual idler gear portals unlike any other. By placing a second idler gear in the portal box, the load gets spread over twice as much surface area for more reliable torque transfer and the strongest gear set you can get. Two idler gears don’t do a thing if they’re not mated perfectly, though. Precision CNC grinding ensures ours do. Our gears are made from the industry’s toughest 9310 steel alloy. Didn’t think dual idlers mattered? With GDP’s quality and experience, they finally do.

A Gear Reduction for Any Kind of Ride
Install 6” portals with a 30%, 45%, or 60% gear reduction to get clearance for huge tires and a massive boost in torque. It’ll turn your monster tires like they’re stock and take your RZR 900 through the thickest mud holes, over the tallest hills, and down treacherous trails. These portals are all about torque—and they can make the rooster tails that prove it.

Less Drivetrain Wear than Stock
We love that portal gear lifts put the gear reduction directly in the hub. This leads to less stress on your machine’s most vital parts, even through rough riding. Your axles, differential, prop shaft, and transmission will thank you—and they’ll last longer, too.

Trust in GDP Strength
We know how to make a strong RZR 900 portals from top to bottom, so you can count on them no matter where you ride. Our GDP housing designs are backed by unmatched real-world experience and the industry’s strongest 5/16” advanced alloy backing plates so you can be confident on your kickass ride

• Our housings are reinforced for gear retention and optimized for oil flow
• Advanced steel alloy backing plates are stronger than chromoly
• Enhance with Portal Blood —gear oil formulated for GDP Portals
• There are no gimmicks and no vents because vents do more harm than good—we know because we tested them

Advanced Gaskets, Seals, and Bearings
Our portals use:

• dvanced gaskets and O-rings with excellent oil resistance and low deterioration rates
• A sealed input gear and double-lipped output seal
• 100% sealing coverage throughout so you can forget about oil leaks
• Double-angular contact output bearings to prevent premature wear
• Roller idler and drive bearings to maintain perfect gear meshing

Top-Rated Customer Service
Still need a little help getting exactly what you need? We’ve got a dedicated team just for portal support. Give us a call so we can get the perfect set of portals in your hands today.

6” Portal Gear Lift Includes:
(4) Assembled portal hub boxes complete with 9310 gears, seals, output shaft, gaskets or O-rings and thrust bearings.
(4) Universal hubs and precision-ground stainless steel slotted rotors with lugs
(4) Specialized steel alloy backing plates
(4) Steel caliper mounting plates
(2) Steel steering arms
Extended brake lines
All required hardware, including recessed castle nut socket

Polaris RZR 900 Portal Gear Reduction Recommendations
Tire Size	Required Suspension Setup with 6" Portals
Up to 30"	Stock
30"	2" Lift Kit
32"	RZR 900 To RZR 900 S Conversion Kit With 3” Lift Kit
32"	RZR 900 To RZR 900 S Conversion Kit With 3” Lift Kit and 2" Lift Kit
44"	7-10" Lift Kit
If you need help figuring out which gear reduction is right for you, check out our portal gear reduction calculator.			Max tire sizes are measured at full compression and full turn. The given tires sizes are the largest we fit without rubbing. With minor trimming or a small amount of rub, larger tire sizes can be used.

Patent # 11,299,042

Patent # 11,318,787

• Polaris RZR 900 : 2015-2020
• Polaris RZR S 900 : 2015-2020
• Polaris RZR 4 900 : 2015-2018
• Polaris RZR S4 900 : 2018
• Polaris RZR 900 XC : 2015-2017

Wheel Requirements:

• 18” or larger wheel required
• 18” wheels cannot exceed 4-1/2” backspacing
• 20” and larger wheels cannot exceed 5” backspacing
• Wheels need to have a center hole of at least 3.25" (82.55mm) or require a 1” wheel spacer

• Available with billet or cast aluminum housing
• 9310 alloy billet steel precision ground gears are cool and quiet
• Increases width by 4 in. per side (8 in. total)
• 1.5 in. diameter 4340 hardened steel drive shaft
• No leak bearings and seals
• Universal hub fits all major bolt patterns
• Comes complete with all hardware, backing plates, brakes lines and instructions